linux-kernel - Re: [PATCH] HID: hid-input: fix double-free in cleanup

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Message-ID: <alpine.LNX.2.00.1508121515370.27871@pobox.suse.cz>
Date:	Wed, 12 Aug 2015 15:16:08 +0200 (CEST)
From:	Jiri Kosina <jikos@...nel.org>
To:	Matthew Leach <matthew@...tleach.net>
cc:	linux-input@...r.kernel.org, linux-kernel@...r.kernel.org,
	Krzysztof Kozlowski <k.kozlowski@...sung.com>,
	Sebastian Reichel <sre@...nel.org>, stable@...r.kernel.org
Subject: Re: [PATCH] HID: hid-input: fix double-free in cleanup_battery

On Wed, 12 Aug 2015, Matthew Leach wrote:

> The power supply layer has taken control of the power supply objects
> from the drivers to core, see [1].  As such, calling
> power_supply_unregister is enough to free the power_supply device.
> 
> Remove the extra kfree's as the power_supply core will handle freeing
> the power_supply object for us.

Please see commit 0621809e37 ("HID: hid-input: Fix accessing freed memory 
during device disconnect") in Linus' tree.

-- 
Jiri Kosina
SUSE Labs

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